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Javier Estraviz Mateos is a Senior Data Engineer at Frontiers since January 2023, specializing in technologies such as Python, Spark, Databricks, Azure DevOps, Azure Data Factory, and Google BigQuery. Prior experience includes a Data Engineer role at Lookiero from August 2019 to December 2022, focusing on similar technologies alongside R and various data streaming tools. Javier also served as a Technical Program Manager at StubHub and held multiple positions at Ticketbis, including International Project Manager, Scrum Master, and IT Technical Recruiter. Earlier career stages included managing a billing team for IBERDROLA S.A. and working as a System Analyst and Programmer for various firms. Javier holds an Official University Master's Degree in Information and Communications Technologies from Universidad del País Vasco, a specialization in Data Science from The Johns Hopkins University, an Executive MBA from IESE Business School, and several other relevant certifications in technology and business.